According to the theory of traditional Chinese medicine, there are some patterns of syndrome that lead to Pulmonary atelectasis: 1. External evils damaging the lungs. 2. Deficiency of lung Energy. 3. Heavy accumulation of phlegm caused by heat.Integration of Chinese medicine and western medicine would be a good choice for this disease. When treating atelectasis, Chinese doctors will take everything into consideration, including the following conditons.1. Shock2. Excessive fluid infusion3. Pulmonary circulation embolism4. Oxygen poisoning5. Severe trauma6. Serious infection7. Blood poisoning8. Lung diseases9. Premature birth10. Old age11. Heart failure12. Smoking13. Obesity